Abrading – Abrading process
Patent
1997-05-12
1999-08-10
Rose, Robert A.
Abrading
Abrading process
451 49, 451 51, 451165, 451115, 451252, 451430, B24B 500
Patent
active
059349760
ABSTRACT:
A lower side of a rotatable grindstone spindle is connected directly to a PZT (Piezoelectric element). By changing electric drive supplied to the PZT, reciprocating movement can be applied to the grindstone through the grindstone spindle in addition to rotational movement. As a result, the grinding locus of an abrasive grain of the grindstone on a taper surface of a workpiece becomes a sine wave, and therefore, the grinding locus can be shifted in a direction other than in a peripheral direction. In this way, the removed amount of the taper surface increases, and circularity of the taper surface can be made to equal to 0.3 .mu.m or less.
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Ishikawa Naruhito
Makino Atsushi
Denso Corporation
Nguyen George
Rose Robert A.
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